diff --git a/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/ShowColumnsTableExec.scala b/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/ShowColumnsTableExec.scala
index ef9cb1e4f70be..e7a608938a04e 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/ShowColumnsTableExec.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/ShowColumnsTableExec.scala
@@ -17,8 +17,6 @@
 
 package org.apache.spark.sql.execution.datasources.v2
 
-import scala.collection.mutable.ArrayBuffer
-
 import org.apache.spark.sql.catalyst.InternalRow
 import org.apache.spark.sql.catalyst.analysis.ResolvedTable
 import org.apache.spark.sql.catalyst.expressions.Attribute